团购订单：子订单打印小票处理

src/views/order/groupBuyingMr/dialog/childOrder.vue

@@ -182,7 +182,7 @@ export default {
     },
     // 打印小票
     handleOpenPrint(row) {
-      this.$emit('handleOpen', row)
+      this.$emit('handleOpen', [row])
       this.isShow = false;
     },
     // 开具发票